Abstract
The purpose of this work is to evaluate the anti-nematode activity of silver boron nanoparticles (AgB NPs) synthesized by PVP polymer and gamma rays as a novel cost-effective and eco-friendly green method. AgB NPs were structurally identified by UV–Vis., XRD, HRTM, DLS, FTIR, SEM and EDX mapping analysis. A suggested reaction mechanism was considered. In-vitro and in vivo nematicidal potential of AgB NPs against root-knot Meloidogyne incognita was examined. HRTEM image exhibited spherical AgB NPs with a diameter of 29.55 nm. FTIR spectrum explains that there is a continuous reduction of ions due to PVP oxidation. AgB NPs possesses an encourage anti-nematode against M. incognita causing root-knot in the tomato plant. Treatment 3 exhibited the maximum mortality as 74.20% after 96 h. It also decreased root galls and egg masses numbers after 1 week of the infection (20.33 galls and 2.33 egg masses). Treatments 3 and 4 reduced the numbers of the 2nd stage juveniles, females and the developmental stages. Boron at the permissible limits was adjusted to be more than silver in the synthesized AgB NPs (to avoid the toxicity) for developing the resistance and immunity of the tomato plant. Therefore, AgB NPs may recognize potential targets within agricultural treatments.
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